CN211838920U - Cold repair structure for PE sheath of pull sling - Google Patents
Cold repair structure for PE sheath of pull sling Download PDFInfo
- Publication number
- CN211838920U CN211838920U CN202020169497.0U CN202020169497U CN211838920U CN 211838920 U CN211838920 U CN 211838920U CN 202020169497 U CN202020169497 U CN 202020169497U CN 211838920 U CN211838920 U CN 211838920U
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- Prior art keywords
- cold
- repaired
- sheath
- window
- waterproof fastening
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- 230000008439 repair process Effects 0.000 title claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 32
- 230000001788 irregular Effects 0.000 claims abstract description 7
- 238000010276 construction Methods 0.000 claims description 7
- 239000000835 fiber Substances 0.000 claims description 6
- 229920000728 polyester Polymers 0.000 claims description 6
- 239000003973 paint Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 230000032683 aging Effects 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Abstract
The utility model relates to a cold patch structure of a PE sheath of a pulling sling, which comprises a window to be repaired, a first cold patch material layer, a second cold patch material layer, a first waterproof fastening layer and a second waterproof fastening layer; the window to be repaired is positioned on the pull sling PE sheath, the periphery of the window to be repaired is arranged into an irregular structure, and the first cold repair material layer is arranged on the window to be repaired; and the longitudinal wrapping length of the first waterproof fastening layer and the second waterproof fastening layer is greater than that of the damaged window to be repaired. The utility model discloses safety, high efficiency do not need the heating among the repair process, easy operation.
Description
Technical Field
The utility model relates to a bridge maintenance consolidates technical field, especially about a draw cold patch structure of hoist cable PE sheath.
Background
The large-span pull-sling bridge comprises a half-through arch bridge, a cable-stayed bridge and the like, and the pull-sling bridge is widely applied and developed due to the advantages of attractive appearance, strong spanning capability and the like. By far, the number of the remaining pulling sling bridges 600 in service and under construction in China is increasing continuously. The pull sling is used as a main bearing component of the bridge, is arranged outside a beam body, is in a high stress state, is exposed in the air for a long time, and is blown by wind and rain, the PE sheath on the surface of the pull sling is easy to have aging, hardening and damage phenomena in different degrees, statistical data shows that more than 70 percent of the PE sheath on the surface of the bridge pull sling has cracking and damage in different degrees in pull sling bridges with the operation time of China exceeding 10 years, and the corrosion of steel wires entering a cable body is a main reason for causing cable replacement or cable breakage accidents of the bridge.
Once the PE sheath of the bridge pull sling cracks and is damaged, a water inlet channel is formed, a corrosion primary battery is formed by two electrodes of a steel wire and electrolyte water, the steel wire of the pull sling is in a water solution dry-wet cycle process for a long time to form electrochemical corrosion, if the effective repair treatment is not timely taken, accumulated water in the cable is discharged, the water inlet channel is blocked, and the situation that continuous corrosion and even wire breakage of the steel wire can be caused in the past can be caused. In view of the complexity and specificity of the sling system, regular inspection and disease maintenance are generally carried out by professional units, so that the timely discovery and treatment of the corrosion condition of the bridge sling are delayed due to a long time period, and the sling has to be replaced in advance when the corrosion is severe.
Disclosure of Invention
To the above problem, the utility model aims at providing a draw cold patch structure of hoist cable PE sheath, its safety, high efficiency do not need the heating, easy operation among the repair process.
In order to achieve the purpose, the utility model adopts the following technical proposal: a cold patch structure of a PE sheath of a pull sling comprises a window to be repaired, a first cold patch material layer, a second cold patch material layer, a first waterproof fastening layer and a second waterproof fastening layer; the window to be repaired is positioned on the pull sling PE sheath, the periphery of the window to be repaired is arranged into an irregular structure, and the first cold repair material layer is arranged on the window to be repaired; and the longitudinal wrapping length of the first waterproof fastening layer and the second waterproof fastening layer is greater than that of the damaged window to be repaired.
Further, the first cold patch material layer, the second cold patch material layer, the first waterproof fastening layer and the second waterproof fastening layer are used for tightly filling the window to be repaired with full bubbles.
Further, the first cold patch material layer and the second cold patch material layer are both prepared by mixing base paste and vulcanizing paste.
Further, the first waterproof fastening layer and the second waterproof fastening layer are both wrapped with polyester fibers.
Further, the wrapping thickness of the polyester fiber wrapping tape should be more than or equal to 8 times of the thickness of the PE sheath, and the longitudinal length is not less than 30 cm.
Further, the irregular structure on the periphery of the damaged window to be repaired is in a sawtooth shape.
Further, the outer surface of the second waterproof fastening layer is coated with paint with the same color as the original suspender.
The utility model discloses owing to take above technical scheme, it has following advantage: 1. the utility model discloses can operate at normal atmospheric temperature, compare with current hot melt welding method, can not draw hoist cable PE sheath to produce adverse effect because of the temperature problem to former bridge. 2. The utility model discloses after waiting to mend damaged window department and filling the cold patch material layer, the outside twines the package with waterproof fastening layer, compares with prior art, need not special winding and firing equipment, does not need professional equipment, professional technical team, and construction maneuverability is strong, realizes that a line bridge manages the target that the personnel can carry out the restoration operation. 3. The utility model is simple in operation, safety, high efficiency, general bridge technical personnel can accomplish the operation, support personnel's service for a bridge spool. To sum up, the utility model discloses can be in bridge maintenance reinforcement technical field wide application.
Drawings
Fig. 1 is a longitudinal schematic view of the overall structure of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
fig. 3 is a partially enlarged schematic view of fig. 2 at B.
Detailed Description
In the description of the present invention, it should be understood that the terms "upper", "lower", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in fig. 1-3, the utility model provides a draw cold patch structure of hoist cable PE sheath, it is including waiting to repair damaged window 1, first cold patch material layer 2, second cold patch material layer 3, first waterproof fastening layer 4 and the waterproof fastening layer 5 of second. The damaged window 1 to be repaired is positioned on the pull sling PE sheath 6, the periphery of the damaged window 1 to be repaired is set to be an irregular structure, and a first cold repair material layer 2 is arranged on the damaged window 1 to be repaired. Be located 2 upper portions of first cold patch material layer and have set gradually first waterproof fastening layer 4, second cold patch material layer 3 and the waterproof fastening layer 5 of second, first waterproof fastening layer 4 and the waterproof fastening layer 5 of second twine the package on drawing the hoist cable, and the vertical length L of twining of first waterproof fastening layer 4 and the waterproof fastening layer 5 of second all is greater than the vertical length D (as shown in figure 1) of waiting to mend damaged window 1. Wherein, the first cold patch material layer 2, the second cold patch material layer 3, the first waterproof fastening layer 4 and the second waterproof fastening layer 5 are tightly packed for repairing the damaged window 1, and are not full or have bubbles.
In the above embodiment, the first cold patch material layer 2 and the second cold patch material layer 3 are both made by mixing the base paste and the vulcanizing paste, and the mixture ratio is the mixture ratio in the prior art. In this embodiment, the ratio of the base paste to the vulcanizing paste may preferably be 10: 1.
In each of the above embodiments, the first waterproof fastening layer 4 and the second waterproof fastening layer 5 are each formed by wrapping a polyester fiber tape. The wrapping thickness of the polyester fiber wrapping belt is more than or equal to 8 times of the thickness of the PE sheath 6, and the longitudinal length is not less than 30 cm.
In the above embodiments, the irregular structure around the damaged window 1 to be repaired may be saw-toothed or have other shapes.
In the above embodiments, the first cold patch material layer 2 is coated on the damaged window 1 to be repaired, the coating range of the first cold patch material layer 2 is far greater than the area of the damaged window 1 to be repaired, and the first cold patch material layer can be coated around the PE sheath 6 in the circumferential direction for a circle; the second cold patch material layer 3 is coated on the first waterproof fastening layer 4, and the coating range is the same as the winding range of the first waterproof fastening layer 4. First waterproof fastening layer 4 and second waterproof fastening layer 5 are the setting of twining the package and pasting.
In the above embodiments, the paint with the same color as the original hanger rod is coated on the outer surface of the second waterproof fastening layer 5, so as to ensure the beauty.
To sum up, the utility model can be operated under normal temperature when in use. Through test, at normal temperature, the tensile breaking stress is not lower than 3.5MPa, the elastic modulus is not lower than 2.0MPa, the shear strength is not lower than 0.20MPa, the breaking nominal strain is not lower than 100%, and the adhesive has higher bonding stability and good water resistance, oil resistance and atmospheric aging resistance; the adhesive also has high tensile strength and bonding strength, and the aging performance is stable; the comprehensive aging performance life reaches 20 a.
Above-mentioned each embodiment only is used for explaining the utility model discloses, the structure, size, the setting position and the shape of each part all can change to some extent on the basis of the technical scheme of the utility model discloses on the basis of technical scheme, all according to the utility model discloses the principle is to the improvement and the equivalence transform that individual part goes on, all should not exclude the utility model discloses a protection scope is outside.
Claims (7)
1. The utility model provides a draw cold patch structure of hoist cable PE sheath which characterized in that: the device comprises a damaged window to be repaired, a first cold-patch material layer, a second cold-patch material layer, a first waterproof fastening layer and a second waterproof fastening layer; the window to be repaired is positioned on the pull sling PE sheath, the periphery of the window to be repaired is arranged into an irregular structure, and the first cold repair material layer is arranged on the window to be repaired; and the longitudinal wrapping length of the first waterproof fastening layer and the second waterproof fastening layer is greater than that of the damaged window to be repaired.
2. A cold-patch construction for a PE sheath for a pull sling according to claim 1, wherein: the first cold patch material layer, the second cold patch material layer, the first waterproof fastening layer and the second waterproof fastening layer are used for tightly filling the window to be repaired with full and bubble-free materials.
3. A cold-patch construction for a PE sheath for a pull sling according to claim 1, wherein: the first cold patch material layer and the second cold patch material layer are both prepared by mixing base paste and vulcanizing paste.
4. A cold-patch construction for a PE sheath for a pull sling according to claim 1, wherein: the first waterproof fastening layer and the second waterproof fastening layer are both polyester fiber wrapping belts.
5. The cold-patch structure of the PE jacket of a pull sling according to claim 4, wherein: the wrapping thickness of the polyester fiber wrapping belt is more than or equal to 8 times of the thickness of the PE sheath, and the longitudinal length is not less than 30 cm.
6. A cold-patch construction for a PE sheath for a pull sling according to claim 1, wherein: the irregular structure on the periphery of the window to be repaired is in a sawtooth shape.
7. A cold-patch construction for a PE jacket for a pull sling according to any one of claims 1 to 6, wherein: and the outer surface of the second waterproof fastening layer is coated with paint with the same color as the original suspender.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020169497.0U CN211838920U (en) | 2020-02-14 | 2020-02-14 | Cold repair structure for PE sheath of pull sling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020169497.0U CN211838920U (en) | 2020-02-14 | 2020-02-14 | Cold repair structure for PE sheath of pull sling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211838920U true CN211838920U (en) | 2020-11-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020169497.0U Expired - Fee Related CN211838920U (en) | 2020-02-14 | 2020-02-14 | Cold repair structure for PE sheath of pull sling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211838920U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115323927A (en) * | 2022-08-19 | 2022-11-11 | 上海市政工程设计研究总院（集团）有限公司 | Stay cable PE sheath wrapping type maintenance method |
-
2020
- 2020-02-14 CN CN202020169497.0U patent/CN211838920U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115323927A (en) * | 2022-08-19 | 2022-11-11 | 上海市政工程设计研究总院（集团）有限公司 | Stay cable PE sheath wrapping type maintenance method |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201103 |